小编id0*_*d01的帖子

在 Python 程序中，通常使用 try-except 块捕获异常：

try:
    # Do stuff
except ValueError:
    # Handle exception

据我所知，在异常处理程序中捕获异常的最佳方法是嵌套的 try-except 块。然而，对于许多嵌套的 try-catch 块，这可能会变得有点混乱：

try:
    # Some assignment that throws an exception if the object is not in the list
    try:
        # Some assignment function that throws an exception if the the object is not already in the database
        # Error Handling
    except ValueError:
        try:
            # Some function that throws an exception if the object does not have an undesired property
            # Error Handling
        except …